/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.api.common.typeutils.base;

import org.apache.flink.annotation.Internal;
import org.apache.flink.api.common.typeutils.TypeSerializer;

@Internal
public abstract class TypeSerializerSingleton<T> extends TypeSerializer<T> {

    private static final long serialVersionUID = 8766687317209282373L;

    // --------------------------------------------------------------------------------------------

    @Override
    public TypeSerializerSingleton<T> duplicate() {
        return this;
    }

    @Override
    public int hashCode() {
        return this.getClass().hashCode();
    }

    @Override
    public boolean equals(Object obj) {
        return obj.getClass().equals(this.getClass());
    }
}
